I don't know if this has been done before but I thought it'd be fun. So here is how it works, I'll start off by creating a family and then the next person will choose one of the children from my family to create the next generation and so on. I hope this makes sense.

Roll the die to see how many children there will be, and then roll again for each child to decide gender (Odd=boy, even=girl). Names and multiples are your choice.